AI-Generated GitHub Copilot “Autofix” Allowed Compromise of Snowflake's Jira

sippeangelo

The title is actually "Wiz Red Agent Finds Its Way Into Snowflake’s Internal Jira Due to an AI-Generated GitHub Copilot Autofix"

forestry

Peer review of changes is still important.

chrisjj

> a single quote in the title breaks out of echo '...' and allows arbitrary command execution. Quote injection still alive and well in 2026. Gawd.

teraflop

> The workflow had an if: condition that appeared protective: > if: (github.event_name == 'issues' && github.event.pull_request.user.login != 'whitesource-for-github-com[bot]') > However, on issues events, github.event.pull_request is always null. This is extra dumb because even if you thought this condition was correctly testing the user's identity, it shouldn't have "appeared protective" upon even a moment's thought. If it worked correctly, it would obviously just exclude one bot user while allowing all other users, so it wouldn't provide any protection at all. But more likely, this condition was never intended to be "protective" at all, and it's only being described that way because the writeup is LLM slop.

mjr00

It's interesting to look at what was being attempted when the vulnerability was introduced[0] > Workflows like jira_close.yml use deprecated atlassian JIRA actions and have a dependency on the gh-actions repo. This is not ideal and unecessarily complex. PR updates jira_close workflow to use direct API calls via curl. It preserves custom fields used too. I won't speak to this projects' management and how they prioritize things, but from my own experience, pre-AI, this type of change would have been firmly in the "this is a minor annoyance, put it in the Tech Debt Backlog alongside the 50000 other tickets" and never actually done. The cost of a human investing the time understanding how to fix the problem, doing code changes, testing them, and deploying them is just way too high for what actual value this change brings, which is close to nothing. Now with AI, it's as simple as firing up an agent and telling them to make a change; as much effort as writing that backlog Jira ticket in the first place. Similar to the problem open source is having with low-value PRs, companies are going to have to start realizing that code is not free to review or maintain, even when it's generated for ~free, in their internal processes. Just because an agent can fix a minor tech debt annoyance with a few lines of instructions doesn't mean it should . [0] https://github.com/snowflakedb/snowflake-connector-net/pull/...

procone

YAML is a nightmare fuel spec. In its quest to make markup "human readable", it has created countless footguns. I honestly prefer XML at this point.

TheRealPomax

No, Snowflake allowing autofixes compromised their Jira. If you tell someone to shoot you in the foot, and they shoot you in the foot, you shot yourself in the foot, just with more steps. If someone else finds the memo that says you've set up foot shooting as a service, and then they trigger that service, you still shot yourself in the foot.

antiloper

Someone forgot to add "make no mistakes!" when triggering autofix /s

vultour

The first linked PR (#1218) has only one commit co-authored by Copilot and it's not related to the vulnerability, and neither are the other suggestions in the PR. Am I missing something?

inahga

I probably would have made the same mistake. It is negligent to write GitHub Actions without using static analysis. Use zizmor in CI https://github.com/zizmorcore/zizmor error[template-injection]: code injection via template expansion --> .github/workflows/jira_issue.yml:24:29 | 22 | run: | | --- this run block 23 | # Escape special characters in title and body 24 | TITLE=$(echo '${{ github.event.issue.title }}' | sed 's/"/\\"/g' | sed "s/'/\\\'/g") | ^^^^^^^^^^^^^^^^^^^^^^^^ may expand into attacker-controllable code | = note: audit confidence → High = note: this finding has an auto-fix

johnwils

The env + jq was there on purpose. Autofix swapped it for a string in a shell. That's the part that needed a person on the diff.

cowthulhu

This really shows why most languages evaluate all NULL comparisons to FALSE. For something as critical as Actions, it’s crazy to me that they wouldn’t fail-closed, and instead fail open when encountering a null. Scary stuff!

kozikow

Issues will happen AI, or not AI. It's same as "self driving car made an accident"! I'm not saying blindly trusting auto-fix is not bad. I'm just saying that interpreting singular issue as way to downplay AI-assisted engineering without giving a "denominator" is not honest reporting.

CodeWithLeo

The interesting lesson here isn't really “AI generated insecure code.” We've had insecure code for decades. The bigger issue is that AI makes it much cheaper to introduce changes, while the cost of reviewing those changes hasn't gone down nearly as much. The bottleneck is moving from code generation to code verification.

tripdout

Why is the original pattern (with the env var in double quotes) not vulnerable? Why can you close the single quotes early but you can't just include double quotes in your title? Is it something to do with the GitHub templating?

nevertoolate

They didn’t really sell this PR well: > Workflows like jira_close.yml use deprecated atlassian JIRA actions and have a dependency on the gh-actions repo. This is not ideal and unecessarily complex. And then goes on: > PR updates jira_close workflow to use direct API calls via curl. Duplicating the logic into OUR codebase via a hand rolled curl, so we can get rid of “needless abstractions”. Auch. And of course the whole thing embedded into a yaml file. This code is the typical kaleidoscope sometimes written by junior devs (and LLMs). On review you just kindly ask to be rewritten into a simple program or just close it as the effort doesn’t worth it.

david_shaw

We're going to see more of this before we see, hopefully, substantially less of it. What I'm seeing now in industry -- and I think this autofix issue is a precise example of it -- is a natural evolution of the "LGTM!" review that's so prevalent in software development and similar disciplines. For years, the dramatic majority of "code review" was a quick glance followed by "Looks good to me." Sure, critical workflows have more scrutiny. Sure, not everyone fell victim to this trap. Sure, there are many exceptions. But it's a meme for a reason: most people weren't really reviewing code assigned to them. They were effectively rubber-stamping most things. So now, in the age of AI, those same people are (sometimes still) expected to be responsible for what their automated developer friend Claude is doing. It's absolutely unreasonable to think that most people are giving the PR more than a glance, and in many organizations they're explicitly trying to remove humans from the loop. One day, AI development and code review will be so good that mistakes like this will be extraordinarily rare. For the near-future, though, I anticipate we'll see more of this before we see less.

AIorNot

Sheesh these anti ai posts feel like when I hear about a self driving car is doing something bad.. ie 'man bites dog' vs 'dog bites man' Human responsibility over AI oversight folks.. even forgoing AI, we're still gonna get compromised code either way.. deal with it.

h4kunamata

Human error. AI generated code, must be scanned for code quality, SAST, SCA, etc, just like a developer's code would. It looks like they accepted AI code without verifying. Deserved!

m4rtink

I think GitHub itself could use a nice "Autofix" right about now. ;-)