Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

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  • Uninitialized stack data ends up in qmf_state
    Open

    Difficulty 2/5 1-3 hours Newbie friendliness 78/100

    lieff/minimp3#155 ·

  • Please add tagged releases
    Open

    Difficulty 2/5 Half a day Newbie friendliness 30/100

    lieff/minimp3#152 ·

  • Heap-buffer-overflow in mp3dec_ex_read_frame via Integer Underflow (Distinct from #140)
    Open

    Difficulty 3/5 1-2 days Newbie friendliness 50/100

    lieff/minimp3#147 ·

  • Double Playback for large buffers
    Open

    Difficulty 4/5 3-5 days Newbie friendliness 40/100

    lieff/minimp3#146 ·

  • Two OOB reads in L3_huffman main_data buffer access — redirected from mackron/dr_libs
    Open

    Difficulty 4/5 3-5 days Newbie friendliness 50/100

    lieff/minimp3#145 ·

  • disclosure of a heap buffer overflow vulnerability
    Open

    Difficulty 4/5 3-5 days Newbie friendliness 8/100

    lieff/minimp3#144 ·

  • MSan: use-of-uninitialized-value in mp3dec_decode_frame — uninitialized scratch buffer reaches L3_huffman and L3_stereo_process
    Open

    Difficulty 3/5 1-2 days Newbie friendliness 45/100

    lieff/minimp3#141 ·

  • Heap buffer over-read in mp3dec_check_vbrtag with low-bitrate frames
    Open

    Difficulty 2/5 1-3 hours Newbie friendliness 55/100

    lieff/minimp3#134 ·

  • 我想问一下imdct所采用的加速方法
    Open

    Difficulty 4/5 3-5 days Newbie friendliness 12/100

    lieff/minimp3#133 ·

  • Crash with undefined behaviour check
    Open

    Difficulty 3/5 1-2 days Newbie friendliness 25/100

    lieff/minimp3#129 ·

  • A lot of noise
    Open

    Difficulty 2/5 1-3 hours Newbie friendliness 22/100

    lieff/minimp3#128 · 1 comment ·

  • 解码完pcm全是空
    Open

    Difficulty 4/5 3-5 days Newbie friendliness 18/100

    lieff/minimp3#124 · 3 comments · 2 reactions ·

  • Undefined behaviour on shifts
    Open

    Difficulty 1/5 Under an hour Newbie friendliness 55/100

    lieff/minimp3#122 ·

  • Minimp3 fails to cal function next_frame().
    Open

    Difficulty 4/5 3-5 days Newbie friendliness 22/100

    lieff/minimp3#120 · 2 comments ·

  • -Wstringop-overflow warning from gcc-14
    Open

    Difficulty 4/5 3-5 days Newbie friendliness 15/100

    lieff/minimp3#119 ·

  • ISO sample delay
    Open

    Difficulty 4/5 3-5 days Newbie friendliness 18/100

    lieff/minimp3#118 ·

  • Pull requests still being accepted?
    Open

    Difficulty 5/5 Over a week Newbie friendliness 12/100

    lieff/minimp3#116 ·

  • How can I get sound data instead of information?
    Open

    Difficulty 3/5 1-2 days Newbie friendliness 12/100

    lieff/minimp3#115 ·

  • * dr_mp3: Remove customization of output channels and sample rate.
    Open

    Difficulty 4/5 3-5 days Newbie friendliness 15/100

    lieff/minimp3#113 · 1 comment ·

  • Possible memory leak
    Open

    Difficulty 2/5 1-3 hours Newbie friendliness 45/100

    lieff/minimp3#111 ·

  • Raspberry Pi Pico compilation error in mp3d_scale_pcm
    Open

    Difficulty 3/5 1-2 days Newbie friendliness 32/100

    lieff/minimp3#110 · 5 comments · 1 reaction ·

  • Float decode out of range [-1, 1]
    Open

    Difficulty 4/5 3-5 days Newbie friendliness 18/100

    lieff/minimp3#104 · 2 comments ·

  • Documentation for mp3dec_ex_read_frame()?
    Open

    Difficulty 2/5 1-3 hours Newbie friendliness 45/100

    lieff/minimp3#103 ·

  • Seeking to 0 makes it impossible to read until end of file
    Open

    Difficulty 3/5 1-2 days Newbie friendliness 40/100

    lieff/minimp3#101 · 3 comments ·

  • Please help create a release tag in the latest location of the code.
    Open

    Difficulty 4/5 1-2 days Newbie friendliness 10/100

    lieff/minimp3#99 · 2 comments ·

  • No method to free data allocated by mp3dec_load_buf
    Open

    Difficulty 2/5 1-3 hours Newbie friendliness 55/100

    lieff/minimp3#98 ·

  • CC0-1.0 Patents
    Open

    Difficulty 3/5 Half a day Newbie friendliness 22/100

    lieff/minimp3#95 · 1 comment · 1 reaction ·

  • MP3解码出现bug
    Open

    Difficulty 4/5 3-5 days Newbie friendliness 10/100

    lieff/minimp3#92 · 1 comment ·

  • A lot of noise after decoding
    Open

    Difficulty 4/5 3-5 days Newbie friendliness 20/100

    lieff/minimp3#78 · 1 comment ·

  • Extended id3v1 test
    Open
    test

    Difficulty 3/5 1-2 days Newbie friendliness 25/100

    lieff/minimp3#66 · 2 comments ·

  • Further optimize L3_huffman and L3_imdct36
    May be free again @lieff claimed this 2984 days ago, and no pull request is open. Open
    enhancement

    lieff/minimp3#35 · 1 comment · 1 assignee ·

  • Handle zero-tail in buffers.
    May be free again @lieff claimed this 2990 days ago, and no pull request is open. Open
    enhancement

    lieff/minimp3#34 · 1 assignee ·

  • Support AVX and aarch64 float4x2
    May be free again @lieff claimed this 3008 days ago, and no pull request is open. Open
    enhancement

    lieff/minimp3#29 · 1 comment · 1 reaction · 1 assignee ·

  • Try use superoptimizers
    Open

    Difficulty 5/5 Over a week Newbie friendliness 15/100

    lieff/minimp3#24 ·

  • [Bug]signed left-shift overflow in mp3dec_skip_id3v1 when parsing the APEv2 tag-size field (CWE-190)
    Possibly taken A pull request linked to this issue is open or already merged. Open

    Difficulty 1/5 Under an hour Newbie friendliness 85/100

    lieff/minimp3#151 ·

  • Signed left shift UB in mp3dec_skip_id3v1 (APEv2 tag size)
    Possibly taken @dawidpieper claimed this 34 days ago. Open

    Difficulty 1/5 Under an hour Newbie friendliness 45/100

    lieff/minimp3#142 ·

  • Integer overflow in Xing/Info VBR header parsing leads to ~10TB allocation (DoS)
    Possibly taken A pull request linked to this issue is open or already merged. Open

    Difficulty 2/5 1-3 hours Newbie friendliness 70/100

    lieff/minimp3#140 ·

  • This lacks any documentation....
    Possibly taken A pull request linked to this issue is open or already merged. Open

    Difficulty 3/5 1-2 days Newbie friendliness 25/100

    lieff/minimp3#108 · 2 comments ·

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